What are the differences between sewage pumps and submersible pumps?

1. The difference between sewage pump and submersible pump: When the water contains sand and gravel impurities, choose the sewage pump. When the water is relatively clean, you can choose the ordinary pump.

Whether it is a sewage pump or a submersible pump, there are two types of liquid pumps and submersible pumps (submersible pumps).

Submersible pumps are easy to use, do not need to be filled with water, and can be connected by hoses, but must be soaked in water for temporary convenience.

Suction pipes for liquid pumps must be connected with hard pipes, and low valves must be installed. The first installation needs to fill the pump with water, which is often used for fixed use.

2, the difference between sewage pumps and clean water pumps: clean water pumps cannot be used to discharge sewage because their impeller structures are different. On the contrary, the sewage pump can be used to drain clean water, but it is only inefficient. The main difference between them is the impeller, the clean water pump is a closed impeller, and the sewage pump is an open impeller to prevent blocking.

3. Generally, as long as the water pump normally discharges water, there is basically no fault. The common fault of single-phase pump is that the capacitor is damaged, there is current but it is larger than normal and cannot start running. As long as the three-phase water pump is balanced and stable, the wiring is correct and there will be no faults. Generally, the judgment of a pump failure is to determine its current value, static DC resistance value, and insulation resistance value.